Hi Users!

How does Fluent calculate mass flow at pressure boundaries? The user's guide says

m'=sum(density * dot(velocity, area))

but when I try that I get a completely different answer. I've exported node coorinates to calculate area, and cell values of axial and radial velocity, and calulated in excel.

There is a problem the Fluent reports non-zero velocity at the nodes on the walls - could this be related?

Thanks for any clues? Hugo.

if you using 2D analysis, first make reference value

Hi Jones,

Please could yu repost that, as it got cut off. thanks, hugo.